Fire-proof arch



(No Model.) I

I. L. HEUGHES.

FIRE PROOF ARCH.

No. 448,233. Patented Mar. 17, 1891.

In V6 nl o'Li 926M014 %f (3 q. 13 seat,

minesses:

. rr STATES PATENT Orricn.

FREDERICK L. I-IEUGHES, OF ROCHESTER, NEWV YORK.

FIRE-PROOF ARCH.

SPECIFICATION forming part of Letters Patent No. 448,233, dated March 17, 1891. Application filed March 9, 1889. Renewed March 5, 1890. Again renewed February 10, 1891- Serial No. 380,879. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK L. HEUGHES, a citizen of the United States, residing at Rochester, in Monroe county, inthe State of New York, have invented certain Improvements in Fire-Proof Arches, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to certain improvements in fire-proof arches, which improvements are fully described and illustrated in the following specification and accompanying drawings, the novel features thereof being specified in the claims annexed to the said specification.

In the accompanying drawings,"representing my invention, Figure 1 is a transverse section of a fireproof arch embodying my improvements. Fig. 2 is a plan view of the same. Fig. 3 is a longitudinal section on the line 8 3, Fig. 1, showing the parts beyond that line. Fig. 4 is a sectional diagram through the filling, the plastering, and the metallic lathing, showing the line of junction between the filling and the plastering and the manner of forming the clinch by which the plastering adheres to the filling.

In the accompanying drawings, A represents the flanged beams, between which the arches are constructed.

B represents the floor. Between the beams is placed the curved metallic lathing C, of any suitable character which is supported in place by the bent bars D, the ends of which rest on the upper sides of the lower flanges of the beams A, as represented at E in Fig. 1. The metallic lathing C is secured to the curved supporting-bars D by means of the clips F, consisting of a strip of metal passing through the openings in the lathing and bent around the bar. Above the metal lathing 0 may be placed the curved bar D, which in this case will be embraced by the clips F. The upper bars D, when used, serve to give the metallic lathing the curved form of the supporting-bars D, and assist in maintaining it in the curved shape during the process of construction. The bars D are of the requisite size and spacing required by the floor-load.

The space H between the beams A A, and

above the lathing, is filled in with any suitable mortar, cement, or filling. This filling when introduced between the beams passes partially through the openings in the metallie lathing and forms a series of projections constituting a suitable clinch adapted to receive and hold the plastering I, which is applied to the under side of the arch. The plastering when applied below the lathing engages with the portions of the filling which project through the lathing, passing with the grooves or irregular openings between such projections, so as to be supported thereby, as indicated in the sectional diagram Fig. 4. The floor B is nailed to the floor-strips G inserted in the filling. Any suitable mortar or cement may be used for the filling, and the arch may be finished with any suitable plastering material.

The lathing may be of the character known in the trade as expanded metal, or any suitable wire-lath or perforated metal may be employed. Any suitable device may be used in place of the clips herein shown to secure the lathing to the supportingbar-such, for instance, as' twisted wire. Either of the bars D D may be used alone without the other.

By my invention I am enabled to construct fire-proof arches lighter and more cheaply and expeditiously than has been heretofore practiced, and I am also enabled to employ unskilled labor to a large extent. I

By my improved construction of fireproof arches I am also enabled to support the floor- -load between the beams by means of the transverse arched bars, so that the strain of any required floor-load is transmitted to the lower flanges of the beams by means of the arched bars, as in the ordinary brick arch.

I claim-- 1. The combination, with the flanged beams A A, of the transverse supporting-bars D, resting on theinner lower flanges of the beams, the metallic lathing C, placed above the bars and sustained thereby, the filling H, and plastering I, substantially as described.

2. The combination,with the flanged beams A A, of the arched supporting-bars D, resting at their ends on the inner lower flanges of the beams, the metallic lathing O, placed above the arched bars D, the bent bars D, 10- ded in the upper surface of the filling, subcated above the lathing, the clips F, filling stantially as described. H, and plastering I, substantially as described. A

3. The combination, with the metallic lath- B REDERICK HEUGHES" 5 ing 0, supported between the flanged beams Witnesses:

A A, of the filling H above the lat-hing, plas- GEO. B. SELDEN, tering I below, and the floor-strips G, embed- O. G. ORANNELL. 

